<div class="form-box col-5">
    <div class="form-group">
        <label>姓名:</label>
        <input type="text" placeholder="请输入姓名">
    </div>
    <div class="form-group">
        <label>电话:</label>
        <input type="tel" placeholder="请输入电话">
    </div>
    <div class="form-group">
        <label>邮箱:</label>
        <input type="email" placeholder="请输入邮箱">
    </div>
</div>